Osprey Gas Piston Conversion Review

The Osprey gas piston conversion is a drop in unit that only takes five minutes to install. It will improve the operation and reliability of your AR-15 by excluding the gas and carbon that would normally vent into the receiver. Your weapon will run much cooler and will require much less cleaning. Critical parts will last significantly longer. The Osprey gas piston conversion uses a uniquely shaped piston and chamber to provide extra mass and surface area to reduce perceived recoil. This results in faster follow-up shots. You can fire off four 30 round magazines and the bolt carrier will still be cool to the touch. The Osprey AR piston conversion works equally well with both semiauto and selective fire ARs and requires a barrel of no more 0.875″ in outside diameter.

Osprey gas piston conversion for 20" barrelled ARs

You don’t need to remove the gasblock or sight tower and there are no permanent alterations, so you can return your weapon to factory specification at any time. The Osprey Defense AR piston conversion kit includes a replacement bolt carrier machined from a single steel billet for ultimate reliability. Two models are available to suit either carbine or rifle. The carbine version fits barrel lengths from 11½” to 16″ barrels and a carbine length gas system. The rifle version of the Osprey Defense piston kit fits 20″barrelled rifles with the rifle length gas system. Both versions include a replacement handguard.